Add support for generating BKM Express tokens

src/main/java/io/craftgate/adapter/BkmExpressPaymentAdapter.java

@@ -32,4 +32,10 @@ public PaymentResponse retrievePaymentByToken(String token) {
         String path = "/payment/v1/bkm-express/" + token;
         return HttpClient.get(requestOptions.getBaseUrl() + path, createHeaders(path, requestOptions), PaymentResponse.class);
     }
+
+    public BkmExpressGenerateTokenResponse generateToken(BkmExpressGenerateTokenRequest bkmExpressGenerateTokenRequest) {
+        String path = "/payment/v2/bkm-express/generate-token";
+        return HttpClient.post(requestOptions.getBaseUrl() + path, createHeaders(bkmExpressGenerateTokenRequest, path, requestOptions),
+                bkmExpressGenerateTokenRequest, BkmExpressGenerateTokenResponse.class);
+    }
 }

src/main/java/io/craftgate/model/TokenizedCardType.java

@@ -2,4 +2,5 @@
 
 public enum TokenizedCardType {
     APPLE_PAY,
+    BKM_EXPRESS
 }

src/main/java/io/craftgate/request/BkmExpressGenerateTokenRequest.java

@@ -0,0 +1,15 @@
+package io.craftgate.request;
+
+import io.craftgate.request.common.BaseRequest;
+import lombok.Builder;
+import lombok.Data;
+import lombok.experimental.SuperBuilder;
+
+@SuperBuilder
+@Data
+@Builder
+public class BkmExpressGenerateTokenRequest extends BaseRequest {
+
+    private String gsmNumber;
+    private String userId;
+}

src/main/java/io/craftgate/request/InitCheckoutPaymentRequest.java

@@ -41,6 +41,9 @@ public class InitCheckoutPaymentRequest extends BaseRequest {
     protected String masterpassGsmNumber;
     protected String masterpassUserId;
 
+    protected String bexGsmNumber;
+    protected String bexUserId;
+
     protected String cardUserKey;
 
     protected Long buyerMemberId;

src/main/java/io/craftgate/response/BkmExpressGenerateTokenResponse.java

@@ -0,0 +1,11 @@
+package io.craftgate.response;
+
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+public class BkmExpressGenerateTokenResponse {
+
+    private String token;
+}

src/test/java/io/craftgate/sample/BkmExpressSample.java

@@ -4,14 +4,20 @@
 import io.craftgate.model.Currency;
 import io.craftgate.model.PaymentGroup;
 import io.craftgate.model.PaymentPhase;
+import io.craftgate.model.PaymentProvider;
+import io.craftgate.model.TokenizedCardType;
 import io.craftgate.request.*;
+import io.craftgate.request.dto.Card;
 import io.craftgate.request.dto.PaymentItem;
+import io.craftgate.request.dto.TokenizedCard;
 import io.craftgate.response.*;
 import org.junit.jupiter.api.Test;
 
 import java.math.BigDecimal;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.UUID;
 
 import static org.junit.jupiter.api.Assertions.*;
@@ -105,4 +111,102 @@ void retrieve_bkm_express_payment_by_token() {
         PaymentResponse response = craftgate.bkmExpressPaymentAdapter().retrievePaymentByToken(bkmExpressPaymentToken);
         assertNotNull(response);
     }
+
+    @Test
+    void generate_bkm_express_token() {
+        BkmExpressGenerateTokenRequest request = BkmExpressGenerateTokenRequest.builder()
+                .userId("userId")
+                .gsmNumber("5551111111")
+                .build();
+
+        BkmExpressGenerateTokenResponse response = craftgate.bkmExpressPaymentAdapter().generateToken(request);
+        assertNotNull(response.getToken());
+    }
+
+    @Test
+    void create_payment_with_bkm_express_tokenized_card() {
+        List<PaymentItem> items = new ArrayList<>();
+
+        items.add(PaymentItem.builder()
+                .name("item 1")
+                .externalId(UUID.randomUUID().toString())
+                .price(BigDecimal.valueOf(0.6))
+                .build());
+
+        items.add(PaymentItem.builder()
+                .name("item 2")
+                .externalId(UUID.randomUUID().toString())
+                .price(BigDecimal.valueOf(0.4))
+                .build());
+
+        CreatePaymentRequest request = CreatePaymentRequest.builder()
+                .price(BigDecimal.ONE)
+                .paidPrice(BigDecimal.ONE)
+                .walletPrice(BigDecimal.ZERO)
+                .installment(1)
+                .currency(Currency.TRY)
+                .conversationId("456d1297-908e-4bd6-a13b-4be31a6e47d5")
+                .paymentGroup(PaymentGroup.LISTING_OR_SUBSCRIPTION)
+                .paymentPhase(PaymentPhase.AUTH)
+                .card(Card.builder()
+                        .tokenizedCard(bkmExpressTokenizedCard())
+                        .build())
+                .items(items)
+                .build();
+
+        PaymentResponse response = craftgate.payment().createPayment(request);
+        assertNotNull(response.getId());
+        assertEquals(PaymentProvider.BKM_EXPRESS, response.getPaymentProvider());
+    }
+
+    @Test
+    void init_3DS_payment_with_bkm_express_tokenized_card() {
+        List<PaymentItem> items = new ArrayList<>();
+
+        items.add(PaymentItem.builder()
+                .name("item 1")
+                .externalId(UUID.randomUUID().toString())
+                .price(BigDecimal.valueOf(0.6))
+                .build());
+
+        items.add(PaymentItem.builder()
+                .name("item 2")
+                .externalId(UUID.randomUUID().toString())
+                .price(BigDecimal.valueOf(0.4))
+                .build());
+
+        InitThreeDSPaymentRequest request = InitThreeDSPaymentRequest.builder()
+                .price(BigDecimal.ONE)
+                .paidPrice(BigDecimal.ONE)
+                .walletPrice(BigDecimal.ZERO)
+                .installment(1)
+                .currency(Currency.TRY)
+                .callbackUrl("https://www.your-website.com/craftgate-3DSecure-callback")
+                .conversationId("456d1297-908e-4bd6-a13b-4be31a6e47d5")
+                .paymentGroup(PaymentGroup.LISTING_OR_SUBSCRIPTION)
+                .paymentPhase(PaymentPhase.AUTH)
+                .card(Card.builder()
+                        .tokenizedCard(bkmExpressTokenizedCard())
+                        .build())
+                .items(items)
+                .build();
+
+        InitThreeDSPaymentResponse response = craftgate.payment().init3DSPayment(request);
+        assertNotNull(response.getPaymentId());
+        assertNotNull(response.getHtmlContent());
+    }
+
+    private TokenizedCard bkmExpressTokenizedCard() {
+        // cardId is returned by the BKM Express client SDK after the buyer selects a card;
+        // gsmNumber and userId must match the values sent to generateToken.
+        Map<String, Object> data = new HashMap<>();
+        data.put("cardId", "bkm-express-card-id");
+        data.put("gsmNumber", "5551111111");
+        data.put("userId", "userId");
+
+        return TokenizedCard.builder()
+                .type(TokenizedCardType.BKM_EXPRESS)
+                .data(data)
+                .build();
+    }
 }